Transmission-band.



T. LE WHlTE TRANSNHSSION BAND. APPLICATION Furio FEB. 10, 1915.

Patented Sept. 12, 19H5.

2 SHEETS-SHEET l,

lll

T. L. WHITE. TRANSMISSION BAND.

APPLICATION FILED FEB. 10, T915.

N N @@Q'N Patented sept. 12, 1916;

2 SHEETS-SHEET 7.

WMM coo es l Ze A these' drums is partially encircled by a band narrante cierren 'ritenne LocKn WHITE, or mano ener, inane.

TRANSMISSION-BAND.

specificati of Leers raient. jpgbmnfa 5,3m, 12, Wma

Application filed February 1Q, 1915. Serial No. 7,417.

of resilient steel,- lined with asbestos ora similar material, and provided at its ends with stationary ears. These drums, bands, and their associated parts to be described aie inclosed by a. cover provided with a small opening in its top closed by ahand plate. The ears at the lett of the bands on the brake and reverse drums bear against bosses on Athe inner wall of the transmission cover and fhold th'e left ends stationary while the ends carrying the right ears are movable. These pairs of ears are slotted for the reception of n rods which pass through these bosses and through other bosses formed on the outer j wall of the cover. Aspringis disposed around each of these rods between the ears, and the right ears are held in place nuts threaded upon the rods and engaging Washers contacting with the right ears. `I1i.or der to reverse the automobile or to apply the brake, it is necessary that these right ears be moved to theleft to cause the bands to 'grip the drums. This is accomplished by means of foot pedals secured upon the outer ends of the rods, the outer faces oi the outer bosses and the inner facesof the bosses on the pedals having cam faces whereby for: ward movement of either pedal will cause the corresponding rod to be moved to the left, with the result that the band will grip the drum. The right ear of the band encircling the middle or low speed drum is held stationary against an adjustable member eX- tending through a boss on the inside and on the 4outside of `the right hand side of the transmission cover, while the free left ear is engaged by a member secured on the inner end of a rod passing through a boss on the LooKE left side of the transmission cover and carrying at its end a foot pedal. This actuating member is moved by a cam action caused by forward movement 'of the pedal associated therewith. This pair of ears is slotted for the reception of a guide rod and is held apart by a spring. The bands on all the drums are identically thesame and are fin'- terchangeable from one drum to another. It is well known in the art that afteran automobile has been used for a considerable length of time, the asbestos linings of l'the bands become worn and have to be replaced.

Owing to the peculiar construction of the transmission and transmission cover of the Ford automobile, in order to replace any or all of the bands it is necessary to' remove and .replace the entire transmission cover, an operation requiring several hours to perform. The object of the present invention is to provide a transmission band for Ford automobiles so constructed that it may be removed and replaced through the small openr ing in the top of the transmission cover. thereby eliminating the tedious and time consuming operation now necessary.

Essentially, the object of the present invention resides in the provision of a Ford transmission band having one or both ears removable from the body portion of the band.

An important object is the provision ot a transmission band or" this character which is provided with a safety catch whereby thel removable ear is prevented from acci# ing the bands in place and constructed in acin place, Fig. 5 is a longitudinal sectional viewtherethrough, and' Fig. 6 is a cross sectional View on the line 6-6 of Fig. 4.

y Referring more particularly to the drawings, the numeral 1 designates the trans mission case of a Ford automobile which comprises the lower portion 2 and the removable cover 3, the cover 3 being provided withy the opening -l closed by a hand plate 5. K The numerals 6, 7 and -8 designate, respectively, the b alie, reverse'and low speed drums. yEach of these drums is encircled by a band 9 having the usual asbestos lining 10 land provided with the ordinary stationary slotted ear 1 1 and a slotted removable ear 12 to be hereinafter described in detail.

The numerals 13 and 414 designate the foot pedals for contracting the bands on the drums 46 and 7, respectively, by means of the cam members 1o and v16 and the rods "17 "and 18Y passing through the ears and having nuts 19 threaded upon their ends.A

Springs 20 are disposed between eachpair of ears. The numeral 21 designates thefoot pedal Vfor operatir-g the band 9 on the low speed drumS by means oi' the "am actuated -member 22 engaging the removable ear 12 slidable upon alguide rod 23. A spring 2l is, disposed between vthis pair of ears.

rIhe ope 'ation of the drums and their asp sociated parts forms no portion of the present invention and will not be described, although the parts. have been described somewhat in detail" for the purpose of explaining the application Vand advantages of applicants invention. Y -In orderthat the ear 12 may be removvable, I form its connection with the band as follows: The ban'dris provided with keyhole slots 25v and 26, the underside of the l band being'beveledat Athe sides and ends of the narrow portions of t'he` slots as shown to form retaining edges. The ear 12 is proivided onv its underside with lugs 27 and 28 welded orfotherwise suitably secured in rplace., Through the major portion of their peripheries the lugs are provided with grooves beveledl the same as the keyhole slots to form retaining flanges. The ear 12 is engaged upon the band 9 by inserting the lugs 27 and 28 within the. large openings ofthe keyholefslots 25 and 26,v and then sliding the ear toward the adjacent end of the. band, the narrow portions ot' the kevhole slots engaging within the grooves` in the lugs, and the beveled edges contacting. The ear willfthu'sbe held upon the band firmly and securely.

In orderthat the ear may be prevented from accidental movement sufiicient to per- .mit ydisengfagement ot' the lugs from the .slotsgi 'lnovidea safety catch comprising a leail spring'29 secured as at 30 upon the ear 12 and provided upon its free end -with a projection passing` through an opening v i l 32 in the base of the ea and engaging within the 'slot 26.

Assuming that the transmission of a Ford automobile is equipped with my bands having removable ears, when it is desired to remove a band it is necessary first to remove the hand plate 5 which will expose the interior mechanism to view. Assuming for the sake of explanation that it is the slow speed band which it is desired to remove, the operation is as follows: The rod 23 is rst removed from the transmission case, after releasing it from the cam 22 by withdL-awal of a taper pin which secures it to thierod. The ear 12 is then removed by dise'ngaging the projection-31011 the springl sei-ting its slotted end at the edge ot the drum and pressing it downwardly, the natural tendency of the band to conform tothe drum causing it to encircle the drum. The band is pushed down in this manner until the stationary ear 11 is in its proper place after which the ear 12 is rengaged upon the band. The rod 23 is then replaced and engaged in the'forks of the ears 11 and 12.

This operation is of course the' same for all of the bands.

y lIt will be readily understood that the removable ear may be either at the left or at the right on each drum, and that both ears may be made removable if desired.

Having thus described my invention what I claim is:

1. An automobile transmission b and comprising a strip of resilient material, an ear slidably engageable thereon, and means for preventing displacement of said ear.

2. An automobile transmission band comprising a strip of resilient material, an ear slidably engageable thereon, and la spring catch for preventing displacement'otl said ear.

3. An automobile transmission band comprising a curved strip ot' flexible material, 1

k prising a curved strip of Hexible material,

an ear slidably engagcable upon the one end thereof, and a spring catch on said earand engaging ahole in said strip for preventing displacement of said ear.

5. An automobile transmission band comprising a curved strip of flexible materia1,`

and a removable ear having a keyhole slot and lug connection with one end thereof.

(3. An automobile transmission band comprising a curved strip of flexible material, provided adjacent to one end with keyhole slots, a removable ear provided upon its base with lugs engageable within sai slots, and a spring catch on said ear and haring a projecti'on passing through a hole in the base at' said ear and into one of said slots.

7. An automobile transmission band comprising a strip of resilient material, an ear detachably engageable on one end thereof, 15 and a spring catch for preventing displacement of said ear.

8. An automobile transmission band having on one end thereof a detachable ear and a spring catch on said' ear engaging said ao band and prewienting the displacement of said ear.

ln testimony whereof I hereto afx my signature in the presence of two witnesses. THOMAS LOCKE WHITE. Witnesses:

AL. HODGIN, FLEDA M. HARTMAN. 

